OpenAI

Did first round technical, second round technical, and then final round, but they no-showed. After they asked to reschedule, I declined because I didn't feel like continuing after the no-show.

2 round phone interview. Scheduled 2 days. - One 60 mins of coding. Coding on coderpad and have test cases predefined to run. Might need to pass all the test cases. - One 60 mins system design.

Recruiter reach-out, followed by a live coding/systems screen, and a comprehensive 5-round onsite loop. The interviews are highly collaborative but incredibly dense, covering massive-scale data ingestion, high-throughput API layer design, and concre